86817860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 188037696

約数和(自身を除く): 101219836

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 157, 172, 215, 314, 430, 628, 643, 785, 860, 1286, 1570, 2572, 3140, 3215, 6430, 6751, 12860, 13502, 27004, 27649, 33755, 55298, 67510, 100951, 110596, 135020, 138245, 201902, 276490, 403804, 504755, 552980, 1009510, 2019020, 4340893, 8681786, 17363572, 21704465, 43408930, 86817860]

約数ペア:

[(1, 86817860), (2, 43408930), (4, 21704465), (5, 17363572), (10, 8681786), (20, 4340893), (43, 2019020), (86, 1009510), (157, 552980), (172, 504755), (215, 403804), (314, 276490), (430, 201902), (628, 138245), (643, 135020), (785, 110596), (860, 100951), (1286, 67510), (1570, 55298), (2572, 33755), (3140, 27649), (3215, 27004), (6430, 13502), (6751, 12860)]